Highway 1 road closures in Santa Cruz and Monterey counties, August 18 onward

CENTRAL COAST, Calif. (KION-TV) -- Caltrans announced that starting on Monday, August 18, a series of ramp and lane closures along Highway 1 will happen through Wednesday, September 3, including both daytime and overnight.

They said that drivers should expect delays during this time and allow for extra time for commutes.

The project will start at Trafton Road Undercrossing in Monterey County to just north of Larkin Valley Road in Santa Cruz County.

Caltrans saying that the project is aimed at improving drainage, widening the roadway, installing new culverts, and upgrading lighting systems to enhance roadway safety and reliability.

Traffic Schedule Aug. 18 – Sept. 3

Day Ramp Closures for Electrical Loop Modifications – 9:00 am to 3:00 pm:

Aug. 18: Riverside Dr. On-Ramp and Off-Ramp (SB).

Aug. 19: Riverside Dr. SB On-Ramp and NB Off-Ramp to Riverside Dr.

Aug. 20: NB On-Ramp from Riverside Dr. and SB On-Ramp to Harkin Slough Rd.

Aug. 21: SB On-Ramp to Harkin Slough Rd. and NB Off-Ramp to Harkin Slough Rd.

Night Ramp Closures for Drainage System Improvements – 8:00 pm to 6:00 am:

Aug. 25–27: NB Off-Ramp to Riverside Dr.

Sept. 2: Main St./Route 152 On-Ramp NB.

Night Lane Closures for Drainage System Improvements – Schedule Below:

Aug. 24 (10:00 pm to 6:00 am): Lane #1 NB

Sept. 2–3 (8:00 pm to 6:00 am): Alternating NB and SB lane closures (Lane #1 and #2).